The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 2021
Filed:
Sep. 27, 2019
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
David Karl Bidner, Livonia, MI (US);
Stephen William Magner, Farmington Hills, MI (US);
William Charles Ruona, Farmington Hills, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02M 1/00 (2006.01); F02D 41/30 (2006.01);
U.S. Cl.
CPC ...
F02D 41/30 (2013.01);
Abstract
The present description relates generally to methods and systems to compensate for oxygen sensor drift caused by hydrogen diffusion within the exhaust system. In one example, a method includes adjusting a fuel amount supplied to an engine based on an estimated amount of hydrogen in the reference cell of an oxygen sensor. In this way, oxygen sensor bias on sensed AFR may be corrected.